(process:6296): Gtk-WARNING **: This process is currently running setuid or setgid.
This is not a supported use of GTK+. You must create a helper
program instead. For further details, see:

    http://www.gtk.org/setuid.html

Refusing to initialize GTK+.

(process:6300): Gtk-WARNING **: This process is currently running setuid or setgid.
This is not a supported use of GTK+. You must create a helper
program instead. For further details, see:

    http://www.gtk.org/setuid.html

Refusing to initialize GTK+.
/etc/gdm/Xsession: Beginning session setup...
Checking for nVidia: present. 
Starting Xgl with options:  -accel xv:fbo -accel glx:pbuffer -nolisten tcp -fullscreen -br +xinerama 
xmodmap:  unable to open display ':1'

(x-session-manager:6293): Gtk-WARNING **: cannot open display: